APD-2-DPT-H Marine White Straight Barbed Drain with Concave Head Introducing the 1-3/8 Straight Barbed All-Purpose Drain in White. This versatile molded drain features a unique low-profile concave head designed to efficiently drain water from various applications. With both straight and 90-degree options available, this drain provides a cost-effective solution for effective water management. It easily installs in a 1-3/8 diameter hole and is securely fastened with the included molded nut. The hose barb